Home / 20,161.47-27,820.71-11,662.23

Finding the Fourth Proportional to 20,161.47, 27,820.71 and 11,662.23

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Solution

The fourth proportional to 20,161.47, 27,820.71 and 11,662.23 is: 16,092.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.47 : 27,820.71 = 11,662.23 : x
  2. Step 2: Convert to fraction form
    20,161.47/27,820.71 = 11,662.23/x
  3. Step 3: Cross multiply
    20,161.47x = 27,820.71 × 11,662.23
  4. Step 4: Simplify right side
    20,161.47x = 324,451,518.78
  5. Step 5: Solve for x
    x = 324,451,518.78/20,161.47
  6. Step 6: Final answer
    x = 16,092.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.